Dashboard Online Test 2, March 30

If it holds that for a nonempty collection of vectors X := \{x_1,\ldots, x_K\} \subset \mathbb{R}^N \sum_{k=1}^K \alpha_k x_k = 0 \; \Rightarrow \; \alpha_1 = \cdots = \alpha_K = 0, they are called [m...